package com.gosling.cloudspace.config.web;

import org.springframework.context.annotation.Configuration;
import org.springframework.web.servlet.config.annotation.CorsRegistry;
import org.springframework.web.servlet.config.annotation.InterceptorRegistry;
import org.springframework.web.servlet.config.annotation.WebMvcConfigurer;

@Configuration
public class GlobalWebMvcConfig implements WebMvcConfigurer {
   /**
    * 重写父类提供的跨域请求处理的接口
    *
    * @param registry
    */
   @Override
   public void addCorsMappings(CorsRegistry registry) {
      // 添加映射路径
      registry.addMapping("/**")
              // 放行哪些原始域
              .allowedOrigins("*")
              // 是否发送Cookie信息
              .allowCredentials(true)
              // 放行哪些原始域(请求方式)
              .allowedMethods("GET", "POST", "DELETE", "PUT", "OPTIONS", "HEAD")
              // 放行哪些原始域(头部信息)
              .allowedHeaders("*")
              // 暴露哪些头部信息（因为跨域访问默认不能获取全部头部信息）
              .exposedHeaders("Server", "Content-Length", "Authorization", "Access-Token", "Access-Control-Allow-Origin", "Access-Control-Allow-Credentials");
   }

   /**
    * 添加拦截器
    *
    * @param registry
    */
   @Override
   public void addInterceptors(InterceptorRegistry registry) {
      //添加权限拦截器
      registry.addInterceptor(new AuthenticationInterceptor()).addPathPatterns("/**").excludePathPatterns("/static/**");
   }
}